Using Neometris wireless thermostat wires

Claire08

I am hoping someone can help me. I have purchased Tado V3+ to replace my existing wireless thermostat - Neometris. I am hoping I could just use the existing wiring however I cannot work out which wires go to which port in the tado receiver. In the Neometris I have 2 blue wires going to N and 2 brown wires going to L which I assume are the same in the tado however I am not sure about the other wires; I also have a red wire bridging between L & 3 and a brown/black wire into 4. There is also 2 earth wires going into the port with 3 lines. My boiler is an ideal logic combo. Could anyone help with configuration of these wires in the tado receiver please? Thanks